you can put a by pass on it with out opening i and no tap put T in hose on back pack one out let to pole the other to a hole in the top of back pack not the lide the other side of b/p on hyest pont . now you get two of the plagy blocks that hold your kitcen uinets nut and bolt thow one hole on both blcks the oter side bolt thow both and a wing nut put return hose throw the midal now tiy ten them up nut and bolt a bit moor then youal ave control of water up your pole with the wing nut . the WCW bp is a bit to much water up the pole iv dun it o my lads bp not dun it on mine as iv plenty of water on bord and i onley use now and a gane for hard acss ,grate bit of kit